ServiceStack.Redis 之 IRedisTypedClient <第四篇>

发布日期:2018-02-09    浏览次数:638

IRedisTypedClient

  IRedisTypedClient类相当于IRedicClient的强类型版,其方法与属性大多数与IRedisClient类似。

  它支持在Redis中使用Linq查询的强大的类,它本身是一个泛型,IRedisClient的泛型方法As获得对象。

  其方法原型如下:

    IRedisTypedClient<T> As<T>();

  1、IEntityStore<T>接口内容

  其中IRedisTypedClient这个类实现了这个接口IEntityStore<T>,该接口要求提供的功能如下:

方法 说明
Delete 根据实体删除一条记录
DeleteAll 全部删除
DeleteById 根据Id删除一条记录
DeleteByIds 根据输入的多个Id删除多条记录
GetAll 获取所有该类型的记录
GetById 根据Id获取一条记录
GetByIds 根据输入的多个Id获取多条记录
Store 根据传入的实体,添加一条记录
StoreAll 根据传入的实体集合,添加多条记录

  Linq查询(针对于GetAll方法返回的IList<T>)示例:

        public ActionResult Index()
        {
            Person p1 = new Person() { Id = 1, Name = "刘备" };
            Person p2 = new Person() { Id = 2, Name = "关羽" };
            Person p3 = new Person() { Id = 3, Name = "张飞" };
            Person p4 = new Person() { Id = 4, Name = "曹操" };
            Person p5 = new Person() { Id = 5, Name = "典韦" };
            Person p6 = new Person() { Id = 6, Name = "郭嘉" };
            List<Person> ListPerson = new List<Person>() { p2,p3,p4,p5,p6 };

            using (IRedisClient RClient = prcm.GetClient())
            {
                IRedisTypedClient<Person> IRPerson = RClient.As<Person>();
                IRPerson.DeleteAll();

                //------------------------------------------添加--------------------------------------------

                //添加单条数据
                IRPerson.Store(p1);
                //添加多条数据
                IRPerson.StoreAll(ListPerson);

                //------------------------------------------查询--------------------------------------------

                //Linq支持
                Response.Write(IRPerson.GetAll().Where(m => m.Id == 1).First().Name);       //刘备
                //注意,用IRedisTypedClient的对象IRPerson的Srore()添加的才能用IRPerson()方法读取
                Response.Write(IRPerson.GetAll().First(m => m.Id == 2).Name);       //关羽

         //------------------------------------------删除--------------------------------------------

                IRPerson.Delete(p1);    //删除 刘备
                Response.Write(IRPerson.GetAll().Count());      //5
                IRPerson.DeleteById(2); //删除 关羽
                Response.Write(IRPerson.GetAll().Count());      //4
                IRPerson.DeleteByIds(new List<int> { 3,4 });    //删除张飞 曹操
                Response.Write(IRPerson.GetAll().Count());      //2
                IRPerson.DeleteAll();   //全部删除
                Response.Write(IRPerson.GetAll().Count());      //0
            }

            return Content("");
        }

  另外,由于该接口并没有实现修改的方法,所以修改还得通过IRedisClient的实例:

        public ActionResult Index()
        {
            PooledRedisClientManager prcm = new PooledRedisClientManager(new List<string>() { "127.0.0.1" }, new List<string>() { "127.0.0.1" }, RedisConfig);

            Person p1 = new Person() { Id = 1, Name = "刘备" };
            Person p2 = new Person() { Id = 2, Name = "关羽" };
            Person p3 = new Person() { Id = 3, Name = "张飞" };
            Person p4 = new Person() { Id = 4, Name = "曹操" };
            Person p5 = new Person() { Id = 5, Name = "典韦" };
            Person p6 = new Person() { Id = 6, Name = "郭嘉" };
            List<Person> ListPerson = new List<Person>() { p2,p3,p4,p5,p6 };

            using (IRedisClient RClient = prcm.GetClient())
            {
                IRedisTypedClient<Person> IRPerson = RClient.As<Person>();
                IRPerson.StoreAll(ListPerson);

                //读取所有的Key
                List<string> ListKeys = IRPerson.GetAllKeys();      
                foreach (string key in ListKeys)
                {
                    Response.Write(key  + "<br/>");
                }

                //修改的话只能通过Key修改
                //urn:person:3
                //urn:person:4
                //urn:person:5
                //ids:Person
                //urn:person:1
                //urn:person:6
                //urn:person:2
                Person p7 = new Person() { Id = 8, Name = "撼地神牛" };
                RClient.Set("urn:person:1", p7);
                Response.Write(IRPerson.GetAll().First(m => m.Id == 8).Name);   //输出 撼地神牛
            }

            return Content("");
        }

 

 

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